mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
025b6a74c8
Summary: `SynchronousEventBeat` and `AsynchronousEventBeat` are a cross-platform re-implementation of run loop related parts of `MainRunLoopEventBeat` and `RuntimeEventBeat` (iOS specific classes for now). In the future, they will replace iOS- and Android-specifc event beat classes. Changelog: [Internal] Fabric-specific internal change. Reviewed By: sammy-SC Differential Revision: D21341996 fbshipit-source-id: 8eda9a5df537cd666b7728e32212a8bb5ddb3ab7
56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include "AsynchronousEventBeat.h"
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namespace facebook {
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namespace react {
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AsynchronousEventBeat::AsynchronousEventBeat(
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RunLoopObserver::Unique uiRunLoopObserver,
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RuntimeExecutor runtimeExecutor)
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: EventBeat({}),
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uiRunLoopObserver_(std::move(uiRunLoopObserver)),
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runtimeExecutor_(std::move(runtimeExecutor)) {
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uiRunLoopObserver_->setDelegate(this);
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uiRunLoopObserver_->enable();
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}
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void AsynchronousEventBeat::activityDidChange(
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RunLoopObserver::Delegate const *delegate,
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RunLoopObserver::Activity activity) const noexcept {
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assert(delegate == this);
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induce();
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}
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void AsynchronousEventBeat::induce() const {
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if (!isRequested_) {
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return;
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}
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// Here we know that `this` object exists because the caller has a strong
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// pointer to `owner`. To ensure the object will exist inside
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// `runtimeExecutor_` callback, we need to copy the pointer there.
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auto weakOwner = uiRunLoopObserver_->getOwner();
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runtimeExecutor_([this, weakOwner](jsi::Runtime &runtime) mutable {
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auto owner = weakOwner.lock();
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if (!owner) {
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return;
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}
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if (!isRequested_) {
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return;
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}
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this->beat(runtime);
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});
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}
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} // namespace react
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} // namespace facebook
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